Draft-equalizer.



A. G. DUNNUOK.

DRAFT EQUALIZER.

APPLIOATION FILED OUT. e. 1913.

Patented Jan. 5, 1915.

THE NORRIS PETERS C0. PHOTO-LITHO.. WASHINGIUN, D. C.

'UILHTED @TATES PATN @FFXQE.

ALOIIZO GREEN DUNNUCK, OF STOCKTON, KANSAS.

DRAFT-EQUALIZEB-.

Application filed October 6,

T0 (ZZZ whom it may concern Be it known that I, ALONZO GREEN Dun- NUCK,a citizen of the United States, residing at Stockton, in the county ofBooks and Eitate of Kansas, have invented certain new and usefulImprovements in Draft-Equalizers, of which the following is aspecification.

My invention relates to improvements in draft-equalizers, and one of itsobjects is to equalize the draft when the power is unequally applied tothe opposite sides of the draft tongue.

A further object of my invention is to provide an equalizer adapted tobe applied to a wagon, sleigh, sled, mower, reaper or other vehicle insuch a manner that three horses can be used side by side, one on oneside of the tongue and two on the other, all pulling from a commonpoint, and thedraft will be equally distributed.

A still further object of my invention is to provide an equalizer inwhich when one of the number of horses being used is in advance of theother horses the draft of all the horses will be equalized.

A still further object of my invention is to provide an equalizer whichis simple, inexpensive and durable in construction, and easy,convenient, and effective in use.

The invention consists in the several features and the construction,combination, and arrangement of features as more fully hereinafterdescribed and claimed.

Referring to the drawings, Figure 1 is a top plan view of my invention;and Fig. 2, a side view, with the single and double trees omitted.

In the drawings, in which like characters of reference denotecorresponding parts throughout both views, and 1 represents a pole ortongue, 2 the cross-bar, secured rigidly to the pole by means of ascrew-bolt 3. Brackets 4, preferably of U-shape form, are secured to red5, which passes through the rear of the pole 1, the ears of saidbrackets extending laterally from the upper and lower edges of the pole.

6 and 7 represent upper and lower braces or stay bars, one on each sideof the pole, each secured at one end to a screw-bolt 8, passing throughthe ears of the brackets 4, and each secured at the opposite end to ascrew-bolt 9, passing through the end of the cross-bar 2.

Bell-crank levers 10, each made 1n two Specification of Letters Patent.

Patented Jan. 5, F915.

1913. Serial No. 793,729.

parts 11 and 12, are provided, being pivoted to the screwbolts 9,between the braces 6 and 7, and their short arms 13 are pivotallyconnected by means of screw-bolts 14: to a slidable bar 15, whichreciprocates over the pole 1, and the long arms 16 are provided with aseries of holes 17 adapted to receive bolts or clips 18. A swingletree19 is attached to one of the bell-crank levers by means of one of thebolts or clips, and a double-tree 20 is attached to the other bellcranklever by means of the other bolt or clip and is provided withswingletrees 21.

By the construction and arrangement above described, a simple andeilicient means is provided for carrying out the objects of theinvention, the draft attachments being secured at the appropriate pointsalong the long arms of the bell-crank levers for equalizing the pull tobe applied at opposite sides of the tongue or pole. In the illustrationgiven, the pull on the swingletree 19 equals in effect that exerted uponthe double-tree 20 because of the longer arm 16 which accommodates theswingletree. A compact and symmetrical structure is maintained withinthe frame-work about the pole 1, and all adjustments are made betweenthe draft attachments and the corresponding bell-crank levers; and it isfound that this arrangement, in combination with the particular mannerof transmitting the strains through the frame-work and to the pole,gives improved results as regards bracing the frame-work evenly againstthe opposite side faces of the pole.

Having thus described my invention, what I claim is- 1. In adraft-equalizer, the combination of a pole, a cross-bar, a bolt securingsaid crossbar at its mid-point to said pole, pivot bolts carried by theopposite ends of said cross-bar, draft-equalizing mechanism carried bysaid pivot bolts, a pair of brackets secured to the opposite sides ofthe pole at the rear of said cross-bar and having ears projectingoutward adjacent the upper and lower edges of the pole, and a brace foreach of the opposite ends of said cross-bar, each brace comprising apair of stay bars secured at their front ends to one of said pivot boltsand at their rear ends to the ears of the bracket on the correspondingside of the ole. p 2. In a draft equalizer, the combination of a pole,at cross-bar, a bolt securing said cross-bar at its mid-point to saidpole, a pair of bell-crank levers, bolts pivoting said levers one toeach of the opposite ends of said cross-bar, one arm of each of saidlevers extending to the rear of said cross-bar, a link pivotallyconnecting the rear arms of said levers, a pair of brackets at the rearof said link and having ears projecting laterally from the upper andlower faces of the pole, a bolt passing through said pole and securingboth said brackets to the opposite side faces of the pole, a brace foreach of the opposite ends of said cross-bar, each brace comprising apair of stay bars secured at their front ends to the upper and lowerends, respectively, of one of said pivot bolts and at their rear ehds tothe ears of the bracket on the corresponding side of the po e.

3. In a draft-equalizer, the combination of a pole, a cross-bar securedto said pole, a pair of bell-crank levers, bolts pivoting said leversone to each of the opposite ends of said cross-bar, one arm of eachlever extendmg rearward from said cross-bar, a second bar pivotallyconnecting the rear ends of said arms, a pair of brackets secured to theopposite sides of the pole at the rear of said second bar and havingears projecting laterally from the upper and lower edges of the pole, abrace for each of the opposite ends of said cross-bar, each bracecomprising a pair of stay bars secured at their front ends to one ofsaid pivot bolts and at their rear ends to the ears of the bracket onthe levers one to each of the opposite ends of said cross-bar, one armof each of said levers extending to the rear of said cross-bar, eachlever being in two parts embracing the adjacent end of the cross-barbetween them, a link having its opposite ends embraced between the rearends of the parts of said rearwardly extending arms and pivotallyconnected therewith, and a brace for each of the opposite ends of saidcross-bar, each brace comprising a pair of stay bars secured at theirfront ends to the upper and lower ends, respectively, of one of saidpivot bolts, the rear ends of each pair of stay bars terminating inapproximately the planes of the upper and lower faces, respectively, ofsaid pole and secured thereto.

In testimony whereof I afiix my signature in presence of two witnesses.

ALONZO GREEN DUNNUGK. Witnesses.

O. O. Oseomv, F. B. PHELPS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

